TDEE Calculator
What is TDEE Calculator ?
TDEE Calculator is a free online tool for estimating Total Daily Energy Expenditure — the total calories the body burns each day across basal metabolism and physical activity. Users enter age, gender, height, weight, and activity level, and the calculator applies scientifically validated formulas (Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle) to return a personalized TDEE and BMR. The result supports concrete nutrition planning: a 300-500 calorie deficit for weight loss, a matching surplus for muscle gain, or a matched intake for weight maintenance. Macronutrient recommendations help translate calorie targets into daily meals. The tool requires no registration, delivers instant results, and serves fitness enthusiasts, athletes, dieters, and professionals such as personal trainers and nutritionists.
TDEE Calculator's Core Features
TDEE calculation based on age, gender, height, weight, and activity level
Multiple validated formulas: Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle
Activity-level adjustment from sedentary to very active
BMR (Basal Metabolic Rate) calculation included in results
Calorie targets for weight loss, maintenance, and muscle gain
Macronutrient recommendations aligned with calorie goals
Instant results with no registration required
TDEE Calculator's Use Cases
Planning a weight loss diet with a 300-500 calorie daily deficit
Setting calorie and macro targets for muscle gain and bulking
Maintaining current weight by matching intake to daily expenditure
Building personalized meal plans around calculated energy needs
Supporting trainers and nutritionists with client calorie estimates
TDEE Calculator's Pricing
Free — full access to all calculator features with no registration required
FAQ from TDEE Calculator
What is TDEE?
- TDEE stands for Total Daily Energy Expenditure — the total number of calories the body burns in a day, combining Basal Metabolic Rate (BMR) with calories burned through physical activity. Knowing TDEE helps tailor calorie intake to goals such as weight loss, maintenance, or muscle gain.
How accurate is the TDEE Calculator?
- The calculator provides an estimate based on scientifically validated formulas such as Mifflin-St Jeor and Harris-Benedict. Individual results can vary with muscle mass, metabolism, and genetics, so results should be monitored and intake adjusted based on real-world progress.
How do I use my TDEE for weight loss or muscle gain?
- For weight loss, consume fewer calories than the TDEE — typically a 300-500 calorie deficit per day. For muscle gain, consume 300-500 calories above the TDEE. To maintain current weight, match daily intake to the TDEE.
What factors affect TDEE?
- TDEE is influenced by age, gender, height, weight, activity level, muscle mass, and metabolic rate. The calculator accounts for these inputs to produce a personalized estimate rather than a generic average.
Which formula does the calculator use?
- The tool supports multiple established equations, including Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle (which uses body fat percentage). Users can compare results across formulas for a more reliable estimate.
Is the TDEE Calculator free to use?
- Yes. The calculator is completely free with no registration required, and results are generated instantly after entering basic metrics and activity level.